Mask

Abstract

A mask for delivery of respiratory therapy to a patient may include one or more of the following improvements: rigidizer provided to headgear strap, locking clip/clip receptacle headgear connection, keyed headgear buckles, lotion dispenser on frame, rotatable prongs to adjust orientation, alignment indicators provided to prong, cushion and/or frame, chin flap with bellows arrangement, vent holes positioned away from gas entry port, and vent holes to direct washout gas at an angle.

1 . A mask comprising:
 a frame;   a facial and nasal interface provided to the frame; and   headgear provided to the frame to maintain the mask in a desired position on the patient's face,   the headgear including at least one strap and a buckle provided to the strap, the buckle including an opening adapted to engage a post provided on the frame,   wherein the opening and/or the post includes a keyed portion structured to prevent rotation of the buckle with respect to the post when the buckle is engaged with the post.   
     
     
         2 . A mask comprising:
 a frame;   a facial and nasal interface provided to the frame; and   a lotion dispenser or moisturizer provided to frame and adapted to dispense lotion for lubricating and/or moisturizing the facial and/or nasal interface.   
     
     
         3 . The mask according to  claim 2 , wherein the facial interface includes a cushion adapted to form a seal around an exterior of the patient's mouth in use. 
     
     
         4 . The mask according to  claim 2 , wherein the nasal interface includes nasal prongs adapted to from a seal with the patient's nasal passages in use. 
     
     
         5 . A mask comprising:
 a frame;   a cushion provided to the frame and adapted to form a seal around an exterior of the patient's mouth in use; and   nasal prongs provided to the cushion and adapted to from a seal with the patient's nasal passages in use,   wherein each of the nasal prongs is adapted to rotate relative to the cushion to change the angle at which the nasal prong extends with respect to the cushion.   
     
     
         6 . The mask according to  claim 5 , wherein each of the nasal prongs includes a sloped end that engages a sloped base provided to the cushion such that rotation of the nasal prong is adapted to rotate the sloped end relative to the sloped base which changes the angle at which the prong extends with respect to the cushion. 
     
     
         7 . (canceled)